Google rolled out its Google Wallet web app at the beginning of the month and introduced support for all major credit cards, including Visa, MasterCard, America Express, and Discover, at the same time. Today, the company announced on the Google Commerce blog that Discover Card is the first to implement the new “Save to Wallet” API for credit and debit card issuers.

Discover securely transmits all required information directly to Google Wallet. You can then select your Discover Card to be the primary method the Google Wallet app will use for in-store purchases, or when shopping online from Google Play or other merchants that accept Google Wallet. You’ll continue to earn rewards on every purchase you make. Discover has also provided Google Wallet with card imagery for the Discover More® Card, so you can easily identify your virtual Discover card in your mobile wallet.

Google demoed the new API during its full Wallet session at Google I/O in June. The feature allows card issuers and eventually other partners to provide a “Save to Wallet” or “Add Your Card” option in their website or application to securely transfer card and account information to Google Wallet. Google said the API would eventually extend to saving Offers in addition to payment cards.

To save a Discover Card to Google Wallet, follow the instructions below: